69 lines
2.5 KiB
Plaintext
Executable File
69 lines
2.5 KiB
Plaintext
Executable File
if [ "$#" != "2" ]; then
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echo "Please supply the addresses of two SOCKS proxies:"
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echo "compare host1:port1 host2:port2"
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exit 1
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fi
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proxy1="$1"
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proxy2="$2"
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curl -s --socks $proxy1 http://google.com | grep "The document has moved" > /dev/null
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if [ "$?" != "0" ]; then
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echo "SOCKS proxy $proxy1 doesn't seem to be working."
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exit 2
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fi
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curl -s --socks $proxy2 http://google.com | grep "The document has moved" > /dev/null
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if [ "$?" != "0" ]; then
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echo "SOCKS proxy $proxy2 doesn't seem to be working."
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exit 3
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fi
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echo "--------------------------------------------------------------------------------------------------------------------------------"
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echo "Comparing PDFs downloaded via '$proxy1' and '$proxy2'"
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echo "Please enter URLs, one per line."
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echo
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echo "PDFs which still differ after pdfparanoia will be left in the pdf/ subdirectory, with suffixes .1.cleaned.pdf and .2.cleaned.pdf"
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echo "--------------------------------------------------------------------------------------------------------------------------------"
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echo
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mkdir -p pdf
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while read url; do
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hash=`echo $url | openssl sha1 | cut -d ' ' -f 2`
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echo "Retrieving $url, with hash $hash";
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if [ ! -s pdf/$hash.1.pdf ]; then
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curl --socks $proxy1 -L --cookie cookie.jar -A "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)" -H "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8" $url > pdf/$hash.1.pdf
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fi
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if [ "`head -c 4 pdf/$hash.1.pdf`" == "%PDF" ]; then
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if [ ! -s pdf/$hash.2.pdf ]; then
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curl --socks $proxy2 -L --cookie cookie.jar -A "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)" -H "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8" $url > pdf/$hash.2.pdf
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fi
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if [ "`head -c 4 pdf/$hash.2.pdf`" == "%PDF" ]; then
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if cmp -s pdf/$hash.1.pdf pdf/$hash.2.pdf; then
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echo "PDFs are identical already, no need to use pdfparanoia"
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else
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echo "PDFs differ, running pdfparanoia"
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if [ ! -s pdf/$hash.1.cleaned.pdf ]; then
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cat pdf/$hash.1.pdf | pdfparanoia > pdf/$hash.1.cleaned.pdf
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fi
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if [ ! -s pdf/$hash.2.cleaned.pdf ]; then
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cat pdf/$hash.2.pdf | pdfparanoia > pdf/$hash.2.cleaned.pdf
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fi
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if cmp -s pdf/$hash.1.cleaned.pdf pdf/$hash.2.cleaned.pdf; then
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echo "pdfparanoia successful scrubbed the PDFs"
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rm pdf/$hash.*.cleaned.pdf
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else
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echo "pdfparanoia failed!"
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fi
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fi
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else
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echo "Download failed from source 2"
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rm pdf/$hash.*.pdf
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fi
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else
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echo "Download failed from source 1"
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rm pdf/$hash.*.pdf
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fi
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echo
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done
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